Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            2054      1756      10.846354  13.843323  12.004043  0.586572   11.861468 
2008            2054      1756      7.922323   10.638935  9.008776   0.546036   8.94      
2009            2054      1756      7.498291   11.082097  8.883636   0.683298   8.726016  
2010            2054      1756      4.514742   9.643806   6.650481   1.032852   6.428968  
2011            2054      1756      2.853678   8.488709   5.071115   1.08655    4.933322  
2012            2054      1756      8.915129   13.375322  10.706695  0.832421   10.572806 
2013            2054      1756      7.332452   10.75571   8.810366   0.611197   8.752275  
2014            2054      1756      7.36029    11.706097  9.033176   0.781529   8.85071   
2015            2054      1756      5.765355   9.807484   7.332129   0.678088   7.182097  
2016            2054      1756      7.707581   11.158129  9.177411   0.630734   9.126387  
2017            2054      1756      5.654839   12.022806  8.082845   1.215881   7.879774  
2018            2054      1756      1.525419   9.531581   4.622849   1.565263   4.430742  
2019            2054      1756      6.864065   8.813      8.002982   0.344578   8.075065  
2020            2054      1756      8.008806   11.354613  9.49901    0.599824   9.535097  
2021            2054      1756      6.760065   9.660161   7.755896   0.440625   7.701435  
2022            2054      1756      6.685678   9.029064   7.598369   0.34425    7.579242  
2023            2054      1756      7.335484   10.486903  8.697206   0.559537   8.710597